#🔒 Need Definitions and answers to some questions

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languid igloo
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can someone explain to me the following terms:

  1. Instance
  2. Object

what exactly does the self parameter do in class definition and what does the _ init_() method do?

daring crownBOT
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@languid igloo

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cedar wagon
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instance and object are roughly the same thing, you get them from instantiating a class. A class is like a blueprint, an instance is like a house built from the blueprint. self is a special name that always refers to the current instance.

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in Python specifically, nearly everything is an object. 42 is an object, it's an instance of class int

languid igloo
cedar wagon
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__init__ is for initializing an object, once the object exists, __init__ is called to allow you to setup its state. For example, if you have DatabaseConnection class, in __init__ you might try to connect to the server, set the properties like self.address = "localhost" or what not

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You don't have to implement __init__ for a class if it doesn't need any special setup and just holds data (like dataclasses for example (even though the __init__ will be hidden and actually do some work))

languid igloo
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thank you

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!close

daring crownBOT
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